Scrollbar in canvas & countdown timer

how do i create a scrollbar in a canvas? it is to display a list of text.
anyone knows how to create a timer that counts down from 2 minutes to 0 seconds?
i've searched but to no avail. please help.

need desperate help....
this is my code:
I have a gameCanvas class extends canvas implements Runnable. this is the run method.
public void run()
          if(gameOver)
               if(points > targetP)
                    getPuzzleSet(2);
                    repaint();
                    serviceRepaints();
this is also a method in the class. it is called by the countddown(below) class.
public void stopTimer()
          timer.cancel();
          gameOver = true;
          repaint();
class Countdown extends TimerTask
     GameCanvas gc;
     int min = 0;
     int sec = 10;
     public Countdown(GameCanvas gc)
          this.gc = gc;
     public void run()
          gc.setTime(min,sec);
          sec--;
          if(sec == 0)
               if(min == 0)
                    gc.stopTimer();
               else
               min--;
               sec = 59;
my problem is the "timer.cancel()" seems to stop the entire application. what i want it to do is when the timer reaches zero, the run method will check if player can move to next level and will display the next level. the timer will also be reset back to initial value.

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Countdown Timer

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www.offroadfire.com
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